The New Holland 5167403 is a genuine OEM engine oil pump designed for various New Holland T4, T5, and T6 series tractors, as well as compatible Case IH Farmall C, Maxxum, and Puma models, and Steyr Multi tractors. This critical component ensures proper engine lubrication, maintaining oil pressure and flow to protect internal engine parts from wear. Manufactured to New Holland's strict quality standards, this oil pump provides reliable performance and direct fitment for specified agricultural machinery.